diff --git a/specs/simple-serialize.md b/specs/simple-serialize.md
index 6021619a6..109ee289e 100644
--- a/specs/simple-serialize.md
+++ b/specs/simple-serialize.md
@@ -418,6 +418,7 @@ Note that this convention means that fields after the signature are _not_ signed
 |   Go   | [ https://github.com/prysmaticlabs/prysm/tree/master/shared/ssz ](https://github.com/prysmaticlabs/prysm/tree/master/shared/ssz) | Go implementation of SSZ mantained by Prysmatic Labs |
 |  Swift | [ https://github.com/yeeth/SimpleSerialize.swift ](https://github.com/yeeth/SimpleSerialize.swift) | Swift implementation maintained SSZ |
 |  C# | [ https://github.com/codingupastorm/csharp-ssz ](https://github.com/codingupastorm/csharp-ssz) | C# implementation maintained SSZ |
+|  C++ | [ https://github.com/NAKsir-melody/cpp_ssz](https://github.com/NAKsir-melody/cpp_ssz) | C++ implementation maintained SSZ |
 
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